Entry No. 75 — the Durango file — filed under: after-dark
Fort Lewis College Observatory
Fort Lewis College runs a rooftop observatory atop Sitter Family Hall, home to its physics, geosciences, and engineering departments, with a 14-inch PlaneWave Corrected Dall-Kirkham telescope under a roll-off roof. The college's Aerospace Business and Engineering Club hosts community star parties on the third-floor Sitter Observation Deck. FLC also maintains an older research observatory at the Old Fort Lewis mesa west of the La Plata River, where a 16-inch Meade telescope sits under a 12-foot clamshell dome. The campus rooftop scope is the closest serious telescope to downtown Durango.
The story
While most stargazers in Durango drift out into the San Juan backcountry, the closest serious glass to downtown sits perched right above the city grid on Rim Drive. Atop Sitter Family Hall—the campus headquarters for physics, geosciences, and engineering—Fort Lewis College keeps a 14-inch PlaneWave Corrected Dall-Kirkham telescope tucked beneath a custom retractable enclosure.
What makes the setup unusual is its dual personality. Out west on the mesa past the La Plata River, the college maintains an older research station centered around a 16-inch Meade telescope under a classic 12-foot clamshell dome. But back on the main campus rooftop, the college's Aerospace Business and Engineering Club turns the third-floor observation deck into an open-air public window, aiming high-end optics at Saturn’s rings, deep-space clusters, and the Lagoon Nebula from the edge of the mesa dark sky.
What it's like
Head up to the Fort Lewis campus after nightfall and make your way to Sitter Family Hall. You'll take the stairs up to the third-floor Observation Deck, where student club members roll back the rooftop enclosure and line up targets through the 14-inch scope. The vibe is casual and student-run rather than polished institutional tour, meaning you'll likely queue up beside a handful of undergrads and local night-sky nerds. Because the roof rolls completely back, high-altitude night winds hit the deck directly—dress in heavier layers than you think you need downtown, and always confirm an event is active since viewing is strictly event-based and weather-dependent.
The move: Catch a campus star party night and take turns at the eyepiece of the 16-inch scope, peering at Saturn's rings or a distant galaxy right above town.
📍 Before you go Public viewing is event-based rather than a fixed schedule; contact the college or watch for announced star parties. Weather-dependent.
- 📍 Durango (Fort Lewis College campus)
- 💸 $
- ⚡ Low-key
- 🌗 Outdoors
Where: Sitter Family Hall rooftop, Fort Lewis College, 1000 Rim Dr, Durango, CO
Hours: Added 2026-06-23 — confirm current hours before you go.
⚠ Seasonal or scheduled — always check before you go.
Pair it with
- The Powerhouse Dark Sky Celebration — Combine rooftop telescoping on the college mesa with hands-on dark sky science inside the historic riverfront power plant down below.
- The Subterrain — Follow up an evening staring at deep-space nebulae with a nightcap in Durango's immersive, hand-painted underground installation art bar.
- White Rabbit Books & Curiosities — Pick up a tucked-away paper pocket guide along the Animas River Trail before making the drive up Rim Drive to watch the stars roll over town.
Good to know
Where is the observatory located?
The primary public viewing deck is on the third-floor roof of Sitter Family Hall at 1000 Rim Drive on the Fort Lewis College campus overlooking Durango. FLC also maintains a secondary, older research observatory at the Old Fort Lewis mesa west of the La Plata River.
What kind of telescopes are used?
The campus rooftop observation deck features a 14-inch PlaneWave Corrected Dall-Kirkham telescope under a retractable roof. The off-campus Old Fort site houses a 16-inch Meade telescope under a 12-foot clamshell dome.
Can you visit on a walk-in basis?
No. Public access isn't set on a daily schedule; it happens during announced community star parties hosted by the college and the Aerospace Business and Engineering Club, and sessions are cancelled if sky conditions turn overcast.
Plan a visit & invite your people →
Further reading: Official site · durangoherald.com · the-journal.com
last checked: 2026-06-23